The phrase "are better examples of" is correct and usable in written English.
It can be used when comparing two or more items and indicating that one set is superior in illustrating a particular point or concept.
Example: "These case studies are better examples of effective marketing strategies than the previous ones we reviewed."
Alternatives: "are superior illustrations of" or "serve as more effective examples of".
There are better examples of how to do a plaza with big towers -- there's Rockefeller Center, with its internal streets and the skating rink.
There's fun to be had, but there are better examples of the adventure genre out there; a prince yes, but one that falls short of being king.
But it is songs like "The Dance" and "The River" — fable-like ballads with simple morals that somehow manage to work at both weddings and funerals — that are better examples of what made Brooks so massively successful.
But the other two — "The Day He Arrives" (2011) and "Oki's Movie" (2010), which had briefer runs in the spring — are better examples of Mr. Hong's distinctive sleight of hand.
(There are other directors, like Godard's nouvelle vague colleague Rivette, whose filmmaking methods are better examples of the collaborative ideal of the '60s and early '70s. To make his 12-hour-plus epic "Out 1," Rivette gave his large cast of actors guidelines for creating their characters, and they wrote most of the movie's dialogue themselves).
There may be better examples of contemptible Speaker cravenness, but if there are, they do not readily come to mind.
As theorbys points out there are few better examples of hubris: "My idea is that MR's idea was to write a tragedy about being human.
Supercentenarians - people like Gertrude Baines, who are aged 110 or over - are even better examples of aging gracefully.
There are few better examples of this than what OpenSignal (formerly known as OpenSignalMaps) is doing.
His ideas about visualizing terror permeate international culture, and there are few better examples of his impact than They Live.
There are few better examples of the cosmopolitan makeup of this 153rd Melbourne Cup field than Dandino.
